Adaptive Optics

Institute for Astronomy

David Kim

Introduction

Design Goals

What is Adaptive Optics (AO)

Hardware for AO

Tests and Results

Design Goals

Get Hardware Running

Get Familiar With Hardware

Design A Test Setup

Link Hardware With Software

What Is AO?

Deformable Mirro

r

Shack-Hartmann Wave front Sensor

Wavefront Sensor Data

Wavefront Sensor Data

Wavefront Sensor Data

Vector Display of wave frontVector Components

Boston Micromachines Deformable Mirror

140 Actuators MicroElectroMechanical Systems (MEMS) Continuous or Segmented Deformable Mirror

Interferometer Test of BMC Mirror

Interferometer Test of BMC Mirror

Interferometer Test of BMC Mirror

Test giving left half actuators then right half 100 volts

Interferometers Isometric plots of mirrors surface

Expected to see half of the surface low and the other half high

Interferometer Test of Agile Mirror

Identical Setup just a different mirror

Left half and right half of actuators given 100 volts

Actuator Test of BMC Mirror

Actuator Test of BMC Mirror

Actuator Test of BMC Mirror

Conclusion

Wavefront Sensor Operational

Interferometer Setup Correct

BMC deformable mirror broken

New deformable mirror needed

Thank You Special Thanks JD Armstrong Jeff Kuhn Joe Ritter John Messersmith John Valliant

The Akamai Internship Program is funded by the Center for Adaptive Optics through its National Science Foundation Science and Technlogy Center grant (#AST-987683) and by grants to the Akamai Workforce Initiative from the National Science Foundation and Air Force Office of Scientific Research (both administered by NSF, #AST-0710699) andfrom the University of Hawaii.

Lani Lebron Lisa Hunter Lynne Raschke Mark Hoffman Scott Seagroves